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If y = y (x) is the solution curve of th...

If y = y (x) is the solution curve of the differential equation
`x^2dy + (y - 1/x) dx = 0, x gt 0 , and y(1) = 1, " then " y (1/2)` is equal to

A

`3 + e`

B

`3/2 - 1/sqrte`

C

`3 - e`

D

`3 + 1/sqrte`

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